Tire-patch.



R. E. GRBGG.

TIRE PATCH.

APPLIOATION FILBD NOV.16, 1911.

1,047,790. vmente@ B60111912.

UNTTED sTATEs PATENT oEEicE.

ROBERT E. GREGG, OF INDIANAPOLIS, INDIANA, ASSIGNOR. TO GENERALSPECIALTY COMPANY, 0F INDIANAPOLIS, INDIANA, A CORPORATION 0F INDIANA.

TIRE-PATCH.

Specification of Letters Patent. Application filed November 16, 1911.Serial N o. 660,640.

Patented Dec.

It is the object of my invention to prof vide a tire patch whichiseasily and firmly applied, is sufficiently strong to withstand allordinary pressures, and is adjustable to suit different shapes ofpunctures.

The various novel features of my invention will appear from thedescription and drawings and will be particularly pointedv out in theclaims.

In the drawings, which illustrate a preferred embodiment of myinvention, Figure 1 is a perspective view of the complete tire patch,with certain of the layers rolled up slightly to show those below; Fig.2 is a plan of the complete tire patch with various' layers successivelybroken away; Fig. 3 is a transverse section through the patch,'thethicknesses of the various layers being rather exaggerated; and Fig. 4is a reduced view of the complete patch.

The patch is made up of a plurality of layers 10, 11, 12 of adhesivefabric, and interposed plates 13 and 14 of flexible but preferablynon-resilient metal, the whole being fastened together by a centralpivotal rivet 15. The fabric layers are preferably placed in positionwith their adhesive surfaces all facing the same way. The layers 11 and12 are preferably disk-shaped, the layer 1'1 being somewhat smaller thani's the layer 12. The layer 10 has a disk-shaped body as large as orslightly larger than the disk 12, and from this body project a pluralityof tabs 16. As shown, there are four tabs 16, spaced 90 apart. The metalplates 13- and 14, which alternate'vwith the fabric layers, arepreferably of somewhat greater length than width, as illustrated, sothat they have each a "major axis and a minor' axis. The end of thesemetallic plates areI preferably rounded, and their major axes aresubstantially equal to the diameter of the fabric disk 12. In order toprevent the adhesive surfaces of the.fabric layerv from sticking beforethe patch is used, such surfaces are covered with layers of some cheapfabric or paper 17, which may be peeled off when the patch is to beused. If the patch is needed to repair a straight cut, the two metalliclayers 13 and 14 are preferably placed with their major axes co-incidentand extending along such cut. .Howeven if an angular cut is to berepaired, the two metallic platesare preferably placed so that theirmajo-r aXes will extend along `the two lines of the cut, the centralrivety 15 acting as a pivot for relative turning betweenthe differentlayers. In either case the protective layers 17 are peeled olf and theadhesive surfaces pressed against the inside of. the tire with the patchin the proper position. If the puncture .is near the edge of the tire,one or more of the tabs 16 may be cut off, these tabs being providedmerely as convenient handles for pulling the patch taut. After the patchhas been properly located, and pressed firmly against the inside of thetire, it is held in place both by its adhesive surfaces and by thepressure of inflation behind it. The adhesive surfaces also fastenA thesecond layer of the patch firmly in .proper relative position.

My invention is capable. of considerable modification in .its details,and I aim to cover all modifications which do not involve a departurefrom the spirit and scope of my invention.

What I claim as new is:

1.*A tire patch comprising two layers of fabric each adhesive on oneside and nonadhesive on t-he other with the adhesive surfaces faced thesameway, and a layer lof sheet metal between said two layers of fabricand covering less than the whole of the adjacent surfaces of said layersof fabric.

2. A tire patch comprising two outside layers of fabric, twosubstantially elliptical metallic plates located between said layers offabric, and a central rivet fastening the layers together and serving asa pivot around which the two middle layers may be adjusted relatively toeach other.

3l A tire patch comprising a plurality of layers of fabric each adhesiveon one side and non-adhesive on the other withl their adhesive surfacesall faced the same way, one or more layers of sheet metal locatedbetween the fabric layers and covering less than the whole oftheadjacent surfaces of said layers of fabric, and removable adhesiveprotective layers coveringthe adhesive surfaces-Of the fabric layers.

v4. A -tire patch comprising two outside U0 layers of fabric, twoflexible sheet metal plates located in separate layers between saidlayers of fabric, each sheet metal plate being 0f greater length thanwidth, and a central rivet fastening the layers together and serving asa pivot around which the two metal ,layers may be adjusted relatively toeach other.

5. A tire patch comprising two outside layers of fabric, two .eXiblesheet metal plates located in separate layers between said layers offabric, each sheet metal plate being of greater length than width, a.layer of fabric separating said sheet metal plates, and a central rivetfastening the layers together and serving as a pivot around which thetwo metal layers may be adjusted relatively to each other.

6. A tire patch comprising two outside layers of fabric, two flexiblesheet metal plates located in separate layers between said layers 0ffabric, each sheet metal plate being of |greater length than width, anda central rivet fastening the layers together and serving as a pivotaround which the two metal layers may be adjusted relatively to veachother, said layers of fabric each being adhesive on one side andnon-adhesive on the other, with the adhesive sides all faced the sameway.

7. A tire patch comprising two outside layers of fabric, two flexiblesheet metal plates located in separate layers between said layers offabric, each sheet metal plate being of greater length than width, and ai layer of fabric separating said sheet metal plates and having adiameter which is intermediate between the longest and shortestdimensions of the metal plates. f

8. A tire patch comprising two layers of fabric, a plate of sheet metalinterposed between said layers of fabric and riveted thereto, one ofsaid layers of fabric being provided with tabs projecting from itsedges.

In Witness whereof, I have hereunto set my hand and seal atIndianapolis, Indiana, this 13th day of November, A. D. one thousandnine hundred and eleven.

ROBERT E. GREGG. [L. s] Witnesses:

JOHN N. COULTER, G. B. SCHLEY.

